Asako Kojima, a married woman struggling with infertility, meets her husband's younger brother, Hideo, at the hospital for infertility treatment. Unlike her husband, who is uncooperative with the infertility treatment and neglects sex, Hideo is fond of Asako and listens to her Kokoro, so Asako opens up to him and even gives him his body...Hideo's intense and passionate advances make her throbbing uterus and vagina overflow with love juices as they engage in forbidden sex, devouring pleasure with a cock other than her husband's. It feels so good that Asako begs for him to cum inside her vagina. After Hideo's raw creampie sex, a new life is born in the Kojima family.